From 33bb85840a9c849932c4585a5e582840b615f9fc Mon Sep 17 00:00:00 2001
From: Anna Kozlova <anna.kozlova@jetbrains.com>
Date: Thu, 2 Feb 2012 21:33:37 +0400
Subject: [PATCH] forbid to rename project root (IDEA-59965, etc)

---
 .../rename/DirectoryAsPackageRenameHandlerBase.java   | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/platform/lang-impl/src/com/intellij/refactoring/rename/DirectoryAsPackageRenameHandlerBase.java b/platform/lang-impl/src/com/intellij/refactoring/rename/DirectoryAsPackageRenameHandlerBase.java
index af922fe0078d..5e1d334817f7 100644
--- a/platform/lang-impl/src/com/intellij/refactoring/rename/DirectoryAsPackageRenameHandlerBase.java
+++ b/platform/lang-impl/src/com/intellij/refactoring/rename/DirectoryAsPackageRenameHandlerBase.java
@@ -64,8 +64,15 @@ public abstract class DirectoryAsPackageRenameHandlerBase<T extends PsiDirectory
 
   public boolean isAvailableOnDataContext(final DataContext dataContext) {
     PsiElement element = adjustForRename(dataContext, PsiElementRenameHandler.getElement(dataContext));
-    return element instanceof PsiDirectory &&
-           ProjectRootManager.getInstance(element.getProject()).getFileIndex().isInContent(((PsiDirectory)element).getVirtualFile());
+    if (element instanceof PsiDirectory) {
+      final VirtualFile virtualFile = ((PsiDirectory)element).getVirtualFile();
+      final Project project = element.getProject();
+      if (project.getBaseDir() == virtualFile) return false;
+      if (ProjectRootManager.getInstance(project).getFileIndex().isInContent(virtualFile)) {
+        return true;
+      }
+    }
+    return false;
   }
 
   private static PsiElement adjustForRename(DataContext dataContext, PsiElement element) {